feat: Add job to remove stale contact inboxes (#8096)

spec/services/internal/remove_stale_contact_inboxes_service_spec.rb

@@ -0,0 +1,32 @@
+# spec/services/remove_stale_contact_inboxes_service_spec.rb
+
+require 'rails_helper'
+
+RSpec.describe Internal::RemoveStaleContactInboxesService do
+  describe '#perform' do
+    it 'does not delete stale contact inboxes if REMOVE_STALE_CONTACT_INBOX_JOB_STATUS is false' do
+      # default value of REMOVE_STALE_CONTACT_INBOX_JOB_STATUS is false
+      create(:contact_inbox, created_at: 3.days.ago)
+      create(:contact_inbox, created_at: 91.days.ago)
+      create(:contact_inbox, created_at: 92.days.ago)
+      create(:contact_inbox, created_at: 93.days.ago)
+      create(:contact_inbox, created_at: 94.days.ago)
+
+      service = described_class.new
+      expect { service.perform }.not_to change(ContactInbox, :count)
+    end
+
+    it 'deletes stale contact inboxes' do
+      with_modified_env REMOVE_STALE_CONTACT_INBOX_JOB_STATUS: 'true' do
+        create(:contact_inbox, created_at: 3.days.ago)
+        create(:contact_inbox, created_at: 91.days.ago)
+        create(:contact_inbox, created_at: 92.days.ago)
+        create(:contact_inbox, created_at: 93.days.ago)
+        create(:contact_inbox, created_at: 94.days.ago)
+
+        service = described_class.new
+        expect { service.perform }.to change(ContactInbox, :count).by(-4)
+      end
+    end
+  end
+end